Abstract
Five new 9,19-cycloartane triterpene diglycosides, which have been named cimiaceroside C (1), and cimifosides A-D (2-5) together with the known compounds cimiracemoside D (6), cimidahurine (7) and α-d-glucopyranosyl-l-β-d-fructofuranoside (8) were isolated from the rhizome of Cimicifuga foetida. The new triterpene diglycosides 1-5 were identified as cimiacerol-3-O-β-d-xylopyranosyl-(1''→3')-β-d-xylopyranoside, 12β-hydroxycimigenol-3-O-β-d-xylopyranosyl-(1''→3')-β-d-xylopyranoside, 25-O-acetylcimig- enol-3-O-β-d-xylopyranosyl-(1''→3')-β-d-xylopyranoside, 24-acetylhydroshengmanol-3-O-β-d-xylopyranosyl-(1''→3')-β-d-xylopyranoside and 26-deoxyacetylacteol-3-O-β-d-xylo- pyranosyl-(1''→3')-β-d-xylopyranoside, respectively, based on analysis of their spectral data and chemical reactions.
Highlights
The rhizome of Cimicifuga foetida is a popular Chinese TraditionalMedicine
The current paper describes the isolation and identification of the five new cycloartane diglycosides 1-5 (Figure 1), together with the known compounds cimiracemoside D (6) [12], cimidahurine (7) [13] and α-Dglucosyl-β-D-fructofuranoside (8) [14]
The rhizome of C. foetida is a very famous Chinese Traditional Medicine and it has been the subject of extensive phytochemical investigations, its chemical components have not been completely identified yet
Summary
The rhizome of Cimicifuga foetida (family Ranunculaceae) is a popular Chinese TraditionalMedicine. Its molecular formula was determined from its 13C-NMR and negative FABMS data (m/z: 751 for [M-H]-) as C40H64O13, and this was confirmed by negative HRFABMS: m/z 751.7352 ([M-H]-)
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